Precise Conductivity Measurement for Pure and Ultrapure Water
The Condumax CLS16B is designed for applications where conductivity measurement is used to monitor the quality of pure and ultrapure water. It uses a conductive measuring principle and is optimized for low conductivity ranges where small changes in water quality can be important.
The sensor is particularly suited to water treatment and hygienic production processes where consistent water quality is required.
Designed for Hygienic Applications
A key characteristic of the CLS16B is its hygienic design. Endress+Hauser specifies compliance with EHEDG, USP Class VI and ASME-BPE, with additional FDA-related requirements listed for applicable configurations.
This makes the sensor suitable for applications where the measuring point must meet strict hygienic and material requirements, particularly in the food & beverage and life sciences industries.
Suitable for Pure and Ultrapure Water Systems
The CLS16B can be used to monitor water quality in several treatment and purification processes, including:
Ion exchangers
Reverse osmosis systems
Distillation systems
Water for injection (WFI)
These applications require reliable monitoring of low conductivity to verify the quality of treated or purified water.
Measuring Range up to 500 μS/cm
The CLS16B is available with a k=0.1 cell constant and a specified measuring range of 0.04 to 500 μS/cm.
This range makes the sensor suitable for applications ranging from very low-conductivity purified water through higher conductivity values encountered during different stages of water treatment and process monitoring.
Designed for CIP and SIP Processes
The sensor is designed for hygienic systems where regular cleaning and sterilization are part of normal operation. Endress+Hauser specifies that the CLS16B is autoclavable and suitable for Cleaning-in-Place (CIP) and Sterilization-in-Place (SIP) processes.
This makes it practical for installations where the conductivity sensor must remain integrated into the process rather than being removed for every cleaning or sterilization cycle.
Electropolished Stainless Steel Construction
The CLS16B uses an electropolished stainless steel body. This provides a smooth surface designed to support hygienic operation and easier cleaning while providing corrosion resistance for the intended applications.
The construction is particularly appropriate for process environments where cleanliness and surface quality are important considerations.
Individually Measured Cell Constant
For accurate conductivity measurement, Endress+Hauser individually measures the cell constant of the sensor.
The actual cell constant can therefore be documented with the sensor's calibration or quality documentation, supporting accurate commissioning and measurement in low-conductivity applications.
Flexible Hygienic Process Connections
The CLS16B can be configured with hygienic process connections including Varivent, Neumo and clamp connections, allowing it to be integrated into different hygienic piping and process installations.
Designed for Elevated Process Temperatures
The CLS16B supports process temperatures up to 120°C, with short-term operation up to 150°C for 30 minutes.
This temperature capability supports common cleaning and sterilization requirements while keeping the sensor suitable for continuous hygienic process monitoring.
Suitable for Hazardous Areas
Depending on the selected configuration, the CLS16B is available with international explosion protection approvals, including ATEX, FM, CSA and NEPSI. The exact certification depends on the selected order configuration.
Designed for Reliable Hygienic Water Monitoring
The combination of low-conductivity measurement, hygienic construction, CIP/SIP compatibility and documented cell-constant calibration makes the CLS16B particularly suited to demanding water-quality applications in food, beverage and life sciences production.
Key Features
Product type: Analog contacting conductivity sensor
Measuring principle: Conductive
Designed for pure and ultrapure water
Measuring range 0.04–500 μS/cm
Cell constant k = 0.1
Maximum process temperature 120°C
Short-term temperature capability 150°C for 30 minutes
Maximum process pressure 12 bar at 20°C
Electropolished stainless steel construction
Individually measured cell constant
Hygienic design
EHEDG compliant
USP Class VI compliant
ASME-BPE compliant
Suitable for CIP and SIP
Autoclavable
Hygienic Varivent, Neumo and clamp process connections
IP68 protection
ATEX, FM, CSA and NEPSI approvals available depending on configuration
Designed for Food & Beverage and Life Sciences applications
Typical Applications
Pharmaceutical Water Systems
The CLS16B can be used for conductivity monitoring in pharmaceutical water systems where purified water and WFI quality must be continuously controlled.
Water for Injection (WFI)
The sensor is suitable for monitoring water for injection, where conductivity is an important parameter for assessing purified water quality.
Reverse Osmosis
The CLS16B can be installed in reverse osmosis systems to monitor the conductivity of treated water and identify changes in water quality.
Ion Exchange Systems
In ion exchange systems, conductivity measurement provides a practical indication of the quality of the treated water and can support monitoring of ion exchanger performance.
Distillation Systems
The sensor can be used in distilled-water systems where low conductivity is expected and hygienic construction is required.
Food and Beverage Processing
The hygienic design makes the CLS16B suitable for water-quality monitoring in food and beverage production, particularly where purified process water is used.
Life Sciences
The CLS16B is designed for applications in the life sciences industry, where hygienic construction, cleanability and documented measurement performance are important.
FAQ
What is the Endress+Hauser CLS16B?
The Condumax CLS16B is an analog contacting conductivity sensor designed for precise conductivity measurement in pure and ultrapure water, particularly for hygienic applications.
What does the CLS16B measure?
The CLS16B measures the electrical conductivity of liquids. It is optimized for low-conductivity water applications and has a measuring range of 0.04–500 μS/cm with a k=0.1 cell constant.
Is the CLS16B suitable for ultrapure water?
Yes. Pure and ultrapure water measurement is one of the primary applications of the CLS16B. It can be used in systems such as ion exchangers, reverse osmosis, distillation and WFI production.
Is the CLS16B suitable for pharmaceutical applications?
Yes. Its hygienic construction and compliance with USP Class VI and ASME-BPE, together with CIP/SIP and autoclavable capability, make it suitable for applicable life sciences and pharmaceutical water applications.
Can the CLS16B be used with CIP and SIP?
Yes. Endress+Hauser specifies that the CLS16B is suitable for Cleaning-in-Place (CIP) and Sterilization-in-Place (SIP) and is also autoclavable.
What is the maximum process temperature?
The maximum continuous process temperature is 120°C. The sensor can withstand 150°C for up to 30 minutes under the specified conditions.
What is the maximum process pressure?
The specified maximum process pressure is 12 bar at 20°C. The allowable pressure depends on the process temperature and selected configuration.
What materials are used for the sensor?
The CLS16B uses an electropolished stainless steel body designed for hygienic applications and corrosion-resistant operation.
Does the CLS16B have a Memosens connection?
No. The CLS16B is an analog conductivity sensor. It should not be confused with Endress+Hauser's digital Memosens conductivity sensors.
What process connections are available?
Depending on configuration, the CLS16B can be supplied with hygienic connections such as Varivent, Neumo and clamp connections.
Is the CLS16B suitable for hazardous areas?
Yes. Endress+Hauser lists approvals such as ATEX, FM, CSA and NEPSI for applicable configurations. The exact certification should be checked against the selected order code.
Does the sensor have an individual cell constant?
Yes. Endress+Hauser individually measures the sensor's cell constant, which supports accurate conductivity measurement and calibration documentation.
